Speed-regulator for explosive-engines.



PATENTED AUG. 30, 1904.

H. SOELDNER. SPEED REGULATOR FOR EXPLOSIVE ENGINES.

APPLICATION [FILED 001. 20. 1903.

A 770HNE Y W/ TNESSES Mm d UNITED STATES Patented August 30, 1904.

PATENT OEErcE.

SPEED-REGULATOR FOR I EXPLOSIVE-ENGINES.

SPECIFICATION forming part of Letters Patent No. 768,866, dated. August 30, 1904.

Application filed October 20, 1903.

To (all whom, it may concern:

Be it known that I, HENRY SoELDNER, a citizen of the United States, and a resident of East 'Williamsburg, in the county of Queens and State of New York, have invented certain new and useful Improvements in Speed-Regulators for Explosive-Engines, of which the following is a specification.

The invention relates to improvements in speed-regulators for explosive-engines, and more particularly to improvements in oil feeding and governing mechanism for such engines; and the invention consists in the novel features, arrangement, and combinations of parts hereinafter described, andpartieularly pointed out in the claims.

In accordance with my invention I provide the engine with an oil-pump, means for initially adjusting the stroke of the pump-plunger, adjustable means for operating said plunger from the main or fly wheel of the engine, and means for automatically controlling the action of the pump-operating means and maintaining uniformity in the speed of the engine.

I do not limit my invention to any special type or construction of oil-engine; but in this application I illustrate the same as applied to the oil-engine shown and described in Letters Patent of the United States No. 740,195, granted to me September 29, 1903.

The invention will be fully understood from the detailed description hereinafter presented, reference being had to the accompanying drawings, in which Figure 1 is a front elevation, partly broken away and partly in section, of an oil-engine equipped with feeding and governing mechanism constructed in accordance with and embodying my invention. Fig. 2 is a detached top view, partly in section, of the said feeding and governing devices applied upon the box for the shaft and the fiy-wheel, the latter being partly broken away and in section and a part of the governing. means being in section on the dotted line 2 2 of Fig. 3. Fig. 3 is a detached elevation of the pump operating and governing devices, and Fig. 4is a detached view of a latch which forms a part of the pump mechanism.

.shaft 11, as shown in Fig. 2.

is pivoted one end of a lever 18, which spans In the drawings, 10 designates the cylinder Serial No. 177,757. (No model.)

of the engine; 11, the shaft driven by the enchamber at the upper end of the cylinder 10,

as is common in this art and fully explained in the aforesaid Letters Patent N 0. 740,195.

My invention pertains to the means for operating and controlling the action of the pump 14. The pump-cylinder is equipped with laterally-extending arms 16 17, which are bolted upon the journal-box 18 and secure the pump thereon in line or parallel with the To the arm 16 across in front of the pump and is connected with the arm 17 by means of an adjustable bolt 19, which passes through a free aperture in the lever 18 and at'its threaded end engages a threaded aperture in the arm 17 and receives the jam-nut 20, which is against the arm 17. Intermediate the lever 18 and arm 17 is applied upon the bolt 19a coiled spring 21, which is under compression and exerts its force to turn and hold the lever 18 outwardly from the arm 17, but permits said lever to be moved by a positive force toward said arm. The end of the lever 18 adjacent to the arm 17 is fashioned into a handle 22,

so that said lever may be operated by handwhen desired or deemed necessary. The outward position of the lever 18 is controlled by the position of the bolt 19, said lever when at its outward position being against the head of said bolt, and the purpose of said bolt 19 is to enable the adjustment of the lever 18 with respect to the pump-plunger in the initial construction and adjustment of the parts of the engine. Upon the outer end of the the arm 17 is pivoted a latch 23, (shown in detail in Fig. 4,) which is provided for the purpose of locking at the proper time the lever 18 at its extreme inward position toward the arm 17, the said lever 18 when thusheld at its inward position rendering the pump 14 inoperative.

, passes through an aperture in the lever 18 and impinges the outer end of the plunger 24, and the lower portion of the frame 26 is pivotally secured upon a bolt or pin 28 to a portion 29 of the engine-frame. The frame 26 is adapted to have a pivotal or hinged movement upon the pin 28 and by its movement in one direction to drive the plunger-rod 24 inwardly for the purpose of supplying the requisite quantity of oil with each rotation of the fly-wheel 12 to the nozzle (not shown) for the ignition-chamber of the engine, it being understood, of course, that only a small quantity of the oil is driven into the said nozzle at each rotation of the wheel 12. The frame 26 is moved inwardly against the plunger-rod 24 by means carried by the fly-wheel 12 and is moved outwardly in a direction from the pump 14 by the action of the rod 24 under the influence of the coiled spring thereon. Secured upon the inner face of the fly-wheel 12 and encircling the hub of said wheel is applied a frame 30, having at its opposite sides the concentric slots 31 to receive the bolts 32, by which the frame 30 is secured to said wheel 12. The object of the slots 31 is to enable the adjustment of the frame 30 on the line of a circle, as may be required and in accordance with the desired speed of the engine. The frame 30 has secured at one corner of its upper end a bar 33, to which is hinged, by means of a bolt 34, the frame 35, carrying at its outer end a roller 36, having convex side surfaces, which roller during the rotation of the fly-wheel 12 passes against the cam-surfaces 37 formed at the upper end of the ring frame 26 for moving said frame inwardly toward and to actuate the pui'iu i-plunger 24. To the frame 30 is pivotally secured a lever-arm 38, Fig. 3, upon which is provided an adjustable weight 39,and the upper portion of which has pivotally connected with it upon a bolt 40 the sliding wedge-plate 41, whose inner end is adapted to pass between the surface of the frame 30 and the adjacent side of the frame 35 immediately behind the roller 36 for the purpose of pressing said roller 36 outwardly toward the frame 1 26, with which said roller cooperates. The plate 41 is guided in its movement on a screw 42, which enters a slot in said plate, as shown in Fig. 3, and serves to support and guide the said plate during its movement toward and from the roller 36. The plate 41 receives its sliding motion from the lever-arm 38, and the upper end of this arm is given a normal spring tension in a direction toward the roller 36 by means of a spring 43, secured at one end to said lever-arm and at the other end upon the bolt 34.

The frame 26, which is in the form of a hinged ring having at its upper end. or end opposite to its hinge the cam-surface 37, carries a bolt .44, which passes through an aperture in the lever 18 and receives a nut, as shown in Fig. 2, the purpose of the bolt 44. being to compel the frame 26 to follow the lever 18 inwardly toward the pump 14 when said leveris man ually operated and to enable the preservation of the firm contact of the stud 27, carried by the frame 26, with the outer end of the plunger-rod 24. The bolt 44 also provides a means for initially adjusting the stroke of the plunger-rod 24. It is desirable that the relation of the frame 26 to the lever 18 and plunger-rod 24 be uniformly preserved, so that during the operation of the engine there will be no pounding of the end of the stud 27 against the outer end of the plunger-rod 24, the means provided insuring the constant contact of said stud with said rod and the uniform movement back and forth of the cam portion of the frame 26 with the plunger-rod. The frame 30 has just above the outer or free end of the frame 35 a lip 45, which extends over said end of said frame 35 for the pur pose of preventing centrifugal action during the operation of the engine from throwing said. end of the frame 35 outwardly. It is necessary that the frame 35 be permitted to move to carry the roller 36 toward and from the frame 26, and hence there is some freedom in the hinged connection of the frame 35, and in the absence of the lip 45 there would be a tendency during the operation of the engine for the free end of the frame 35 to fly outwardly.

It will be understood that in the employment of the engine the pump 14 is to discharge the fuel at each upstroke of the piston into the cylinder 10, so that there may be an ignition or explosion in the chamber at the upper end of the cylinder 10 for returning the piston to its lower position and effecting the driving of the shaft 11 as usual. In accordance with my invention the pump is operated in starting the engine by means of the hand-lever 18,

which is moved toward and from the pump 14 and rod 24 a few times for the purpose of setting the fuel in motion and getting the engine started, and thereafter the operation of the pump 14 is entirely automatic and is accomplished by the roller 36 and cam-frame 26, the said roller being carried by the wheel 12 and at each rotation of the wheel contacting with the cam-surface 37 of the frame 26- and driving said frame, with its stud 27, in wardly against the plunger-rod 24. The outward movement of the plunger-rod 24 is effected by a spring 25, and its motion is communicated to the frame 26, the latter thereby to its thickness holding the roller 36 outwardly from the wheel 12 and frame 30, so that during the rotation of the said wheel the said roller 36 may rotate against the cam-surface 37 and move the plunger 24 inwardly. Solong as the engine is traveling at a proper speed the end of the wedge-plate 41 will be behind the roller 36, holding the latter outwardly, so that it shall with each rotation of the wheel 12 engage the cam-surface 37 of the frame 26, that portion of the plate 41 which is tapered being the part which is behind the frame 35 and roller 36. During the rotation of the wheel 12 and frame 30 the centrifugal action will tend to throw the governor-arm 38 outwardly in opposition to the force of the spring 43, and this action of said arm tends to draw the wedgeplate 41 in a direction from the roller 36, and therefore in adjusting the parts for a special speed in the engine the weight 39 will be moved upwardly or downwardly on the gov,

ernor-arm 38 with regard to the strength of the spring 43, so that the proper speed of the engine may be maintained by preserving a uniformity in the relation of the plate 41 to the roller 36. In adjusting the parts fora normal speed of the engine the roller 36 should be in the position with respect to the camsurface 37 shown in Fig. 2 when the piston in the cylinder 10 is at the end of its upstroke, the plate 41 then properly being behind the roller 36, so that upon each rotation of the wheel 12 said roller may drive the frame 26 inwardly against the plunger-rod. Should there be an increase in the speed of the engine, the centrifugal action operating upon the governor-arm 38 would cause the latter to draw the wedge-plate 41 outwardly from the roller 36, thus allowing said roller to move in a direetiontoward the wheel 12, its action on the frame 26 being thereby to that extent lessened, and should the engine develop a very high speed the centrifugal action would be such that the arm 38 will withdraw the wedge-plate 41 entirely from behind the roller 36, and thus enable said roller to attain the position in which it is illustrated in Fig. 2, in which position it will not during the rotation of the wheel 12 act upon the frame 26, the result being that the pump 14 will not at such time,

operate. Upon a slowing-down of the engine from its very high speed the centrifugal action will be lessened and the governor-arm 38.

will, under the influence of the spring 43, move in a direction toward the roller 36 and restore the wedge-plate 41 to its former posi-.v

tion behind the roller 36, whereupon said roller to the extent desired will again act through the cam-frame 26 to operate the pump. When the engine is running at a normal speed and then that speed decreases, the effect of the centrifugal action upon the governor-arm 38 will be lessened, and the plate 41 will be moved farther behind the roller 36, and thereby set said roller into a farther outward position from the wheel 12 and increase-the action of; said roller against the frame 36, this continuing until the speed of the engine has increasedto the normal.

The frame 30 may be adjusted concentrically with and around the shaft 11 for the purpose of attaining a high speed in the engine, and the adjustment of this frame 30 will take place when the engine is at rest and the piston is at its high point within-the cylinder 10, and for attaining a high speed the frame '30 must vbe moved concentrically in the direction in which the engine is to run, the slots 31 and screws 32 permitting of such adjustment. The weight 39 should also under such condition be adjusted lower down upon the governor-arm 38, so that the increased centrifugal action may only have its proper effect upon said arm. The adjustment of the frame 30 varies the moment of time at which the roller 36. carried by the frame, shall act upon the frame 26 and pump 14, this variation of time in the action of the roller 36 resulting in a variance in the moment at which the ignition or explosion shall take place in the upper end of the cylinder 10, and when the frame 30 is thus adjusted the roller 36 will act upon thev frame 26 in advance of the period at which it did act upon said frame when the parts were set for a normal speed in the engine, this behen it is desired to stop the engine, the

attendant should grasp the handle end of the lever 18 and move the latter inwardly until. the hook portion of the latch 23 drops over the outer edge of said lever, when said lever may be released from the hand of the attend ant and will be locked by the latch 23. The inward movement of the lever 18 carries the frame 26 inwardly beyond the influence of the roller 36, and hence while the lever.18 is locked at its inward position the roller 36 can have no influence upon the pump.

The pump 14 is parallel with the shaft'll, and the cam-surface 37 is at right angles to said shaft, but moves back and forth. in line with the shaft, and the roller 36 is movable. toward and from the cam-surface 37 in line with the shaft.

I prefer to apply, the frame 30 directly upon the fly-wheel 12, because the fiy-wheel is usually upon the shaft 11; but it is obvious that I might apply the frame 30 upon any wheel whichmay be placed upon the shaft 11 to receive it, one purpose ofv my invention being;

lIO

that the frame 30 shall rotate with the shaft 11, so that the roller 36 may be carried from said shaft by means of a proper support directly or indirectly connected with the shaft.

IV hat I claim as my invention, and. desire to secure by Letters Patent, is

1. In an oil-engine having a shaft, and a wheel thereon, the fuel-supply pump mounted on said engine parallel with the said shaft, a movable cam-frame at right angles to said shaft and arranged to move back and forth with the pump-plunger in line with said shaft, a spring for moving said frame outwardly, a support to rotate with the wheel and having a roller to engage at each rotation of the wheel said cam-frame and move the same and the pump-plunger inwardly, and means subject to the speed of the engine for controlling the relation of said roller to said cam-frame, said roller being movable toward and from said frame; substantially as set forth.

2. In an oil-engine having a shaft, and a wheel thereon, the fuel-supply pump mounted on said engine parallel with the said shaft, a movable cam-frame at right angles to said shaft and arranged to move back and forth with the pump-plunger in line with said shaft, means for preserving a uniform relation of said frame and pump-plunger to each other during the operation of the engine, a spring for moving said frame outwardly, a support to rotate with the wheel and having a roller to engage at each rotation of the wheel said cam-frame and move the same and the pumpplungerinwardly, and means subject to the speed of the engine for controlling the relation of said roller to said cam-frame, said roller being movable toward and from said frame; substantially as set forth.

In an oil-engine having a shaft, and a wheel thereon, the fuel-supply pump mounted on said engine parallel with the said shaft, a movable cam-frame at right angles to said shaft and arranged to move back and forth with the pinup-plunger in line with said shaft, a spring for moving said frame outwardly, a support to rotate with the wheel and having a roller to engage at each rotation of the wheel said cam-frame and move the same and the pump-plunger inwardly, a sliding wedgeplate carried with said support and adapted to move behind said roller for regulating the relation of said roller to said frame, and means subject to the speed of the engine for moving said wedge-plate with relation to said roller, said roller being movable toward and from said frame; substantially as set forth.

I. In an oil-engine having a shaft, and a wheel thereon, the fuel-sup pl y pump mounted on said engine parallel with the said shaft, a movable cam-frame at right angles to said shaft and arranged to move back and forth with the pum 'rplunger in line with said shaft, a spring for moving said frame outwardly, a support to rotate with the wheel and having a roller to engage at each rotation of the wheel said cam-frame and move the same and the pump-plunger inwardly, a sliding wedgeplate carried with said support and adapted to move behind said roller for regulating the relation of said roller to said frame, a spring for normally moving said wedge-plate toward said roller, and a governor-arm connected to said wedge-plate and subject to the speed of the engine for moving said wedge-plate in a direction from said roller in opposition to said spring, said roller. being movable toward and from said frame; substantially as set forth.

5. In an oil-engine having a shaft, and a wheel thereon, the fuel-supply pump mounted on said engine parallel with the said shaft, a movable cam-frame at right angles to said shaft and arranged to move back and forth with the pump-plunger in line with said shaft, a spring for moving said frame outwardly, a support to rotate with the wheel and. having a roller to engage at each rotation of the wheel said cam-frame and move the same and the pump-plunger inwardly, means subject to the speed of the engine for controlling the relation of said roller to said cam-frame, said roller being movable toward and from said frame, and means independent of said roller for manually operating said pump; substantially as set forth.

6. In an oil-engine having a shaft, and a wheel thereon, the fuel-suppl y pump mounted on said engine parallel with the said shaft, a movable cam-frame at right angles to said shaft and arranged to move back and forth with the pump-plunger in line with said shaft, a spring for moving said frame outwardly, a support to rotate with the wheel and having a roller to engage at each rotation of the wheel said cam-frame and move the same and the pump-plunger inwardly, means for adjusting said roller on a line concentric with said shaft, and means subject to the speed of the engine for controlling the relation of said roller to said cam-frame, said roller being movable toward and from said frame; substantially as set forth.

7. In an oil-engine having a shaft, and a wheel thereon, the fuel-supply pump mounted on said. engine parallel with said shaft, a movable cam-frame adjacent to the end of the plunger-rod of said pump and arranged to move back and forth with said rod in line with said shaft, a spring for moving said frame outwardly, a hinged frame carried by said wheel and having in its free end the roller in line with said cam-frame to engage at each rotation of said wheel said frame and move the same and pump-plunger inwardly, and means subject to the speed of the engine for positioning said roller with relation to said cam-frame; substantially as set forth.

8. In an oil-engine having a shaft, and a wheel thereon, the fuel-supply pump mounted IIS on said engine parallel with said shaft, a movable cam-frame adjacent to the plunger-rod of said pump and adapted to move back and forth with said rod in line with said shaft, a spring for moving said frame outwardly, the hinged frame secured to said wheel and carrying at its free end the roller for cooperation with said cam-frame and at each rotation of said wheel to engage said frame and move the same and the pump-plunger inwardly, the sliding wedge-plate for positioning said roller with respect to said cam-frame, and governor mechanism for controlling the position of said wedge-plate in accordance with the speed of the engine; substantially as set forth.

9. In an oil-engine having a shaft, and a wheel thereon, the fuel-supply pump mounted on said engine parallel with said shaft, a movable cam-frame at right angles to said shaft and arranged to move back and forth with the pump-plunger in line with said shaft, a spring for moving said frame outwardly, and the frame 30 applied concentrically upon said wheel and carrying the roller 36 movable toward and from said cam-frame, the sliding wedge-plate a1 for positioning said roller with respect to said cam frame, a hinged lever arm 38 connected with said wedge-plate, the spring L3 normally acting to move said wedge-plate behind said roller for pressing the latter outwardly toward said camframe, and an adjustable weight connected with said lever arm; substantially as set forth. 7

10. In an oil-engine having a shaft, and a wheel thereon, the fuel-supply pump mount ed on said engine parallel with said shaft, a movable cam-frame at right angles to said shaft and arranged to move back and forth with the pump-plunger in line with said shaft, a spring for moving said frame outwardly, the frame 30 applied concentrically upon said wheel and carrying the roller 36 movable toward and from said cam-frame, the sliding wedge-plate 4:1 for positioning said roller with respect to said cam-frame, a hinged lever-arm 38 connected with said wedge-plate, the spring 43 normally acting to move said wedge-plate behind said roller for pressing the latter outwardly toward said cam-frame, an adjustable weight connected with said lever-arm, and

means for adjusting said frame 30 concentrically with said shaft; substantially as set forth.

11. In an oil-engine having a shaft, and a wheel thereon, the fuel-supply pump mounted on said engine parallel with said shaft, the hinged frame 26 having the cam-surface 37 in line with the plunger-rod of said pump, means connecting said cam-frame with said plungerrod, whereby the movement of said frame is imparted to said rod for operating said pump, a spring for moving the plunger-rod and said cam-frame outwardly, a support to rotate with the wheel and having a roller to engage at each rotation of the wheel the cam portion of said frame and move the same and the pump-plunger inwardly, and means subject to the speed of the engine for controlling the relation of said roller to said frame, said roller being movable toward and from said frame; substantially as set fortlr.

12. In an oil-engine having'a shaft, and a wheel thereon, the fuel-supply pump mounted on said engine parallel with said shaft, the hinged cam-frame 26 at right angles to said shaft and arranged to move back and forth with the pump-plunger, the pivoted leverarm 18 for manual operation in engagement with the plunger-rod of said pump, means connecting said lever and cam-frame, and means for locking said lever at its inward position for maintaining the pump in an inoperative condition, combined with a spring for moving the pump-plunger and said cam-frame toward said wheel, a support carried by said wheel and having the roller to engage at each rotation of the wheel said cam frame and move the same and the pump-plunger inwardly, and means, subject to the speed of the engine, for controlling the relation of said roller to said cam-frame, said roller being movable toward and from said frame; substantially as set forth.

Signed at New York, in the county of New York and State of New York, this 19th day of October, A. D. 1903.

HENRY SOELDNER.

WVitnesses:

CHAS. O. GlLL, ARTHUR MARION. 

